Hi Ron:
Tip: looking for similar problems with solutions is good.
BUT If the solution does not work for you please do NOT add your reply to it. START A NEW QUESTION. That way you can describe your situation and MORE people are likely to look at your problem.
It definitely sucks. And it definitely is not supposed to "work" that way.
So something else is going on here.
One thing to try is starting Word in safe mode. If that helps, then the problem is an addin. You'll have to figure out which one is the problem.
Shortcut to Start Word in Safe Mode or Excel in Safe Mode, Hold <CTL> key when clicking on icon or using the Start menu search window and entering WINWORD.EXE /a or WINWORD.EXE /safe
https://support.office.com/en-us/article/Work-with-Office-safe-modes-dedf944a-5f4b-4afb-a453-528af4f7ac72
Another thing to try is go into File Explorer. Right click on one of the problem files, select properties, look in the General tab, near the bottom to see if the "Read only" attribute is turned on.
Since you are lawyers, it could be that your network administrators have turned on some form of DRM, Digital Rights Management. Check with them.